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Journal of Chemistry
Volume 2016 (2016), Article ID 1656459, 8 pages
Research Article

Highly Isotactic Poly(N-butenyl-carbazole): Synthesis, Characterization, and Optical Properties

1Department of Chemistry and Biology, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
2Department of Industrial Engineering (DIIN), University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy

Received 30 November 2015; Revised 29 January 2016; Accepted 10 February 2016

Academic Editor: Frederic Dumur

Copyright © 2016 Antonio Botta et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The synthesis of isotactic poly(N-butenyl-carbazole) (-PBK) by using homogeneous isospecific Ziegler-Natta catalytic system is reported. The achieved polymer is crystalline and shows, to DSC and X-ray analysis, two distinct crystalline phases. -PBK FTIR spectrum and X-ray diffraction pattern are compared with those of poly(N-vinylcarbazole) (PVK). The observed differences are tentatively associated with higher flexibility of the -PBK chains due to the alkylene group connecting the carbazole group to the main chain. -PBK optical properties are also compared with those of PVK and isotactic poly(N-pentenyl-carbazole) (-PPK), a higher homologue of -PBK recently used as emitting layer in organic light emitting diodes (OLEDs) showing white light emission. The close similarity of the fluorescence spectra of -PBK and -PPK is a promising basis for optical applications of this polymer.